Malicious PDF — malware analysis report

Static analysis result for SHA-256 6716fe9aa30f9a97…

MALICIOUS

PDF

79.0 KB
MD5: d74a925121b3e929e18fdf9a6854cef0 SHA-1: 82eb09b0d16b5476d6b95b8d18e0ecb3233ce64e SHA-256: 6716fe9aa30f9a972f2e9d4ec47b262d94ac1cd1ff7e2e337d1892af6ce742a1
156 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.007 JavaScript

This PDF file is identified as malicious due to the presence of an XFA form containing executable script, specifically leveraging the CVE-2010-0188 exploit. The exploit targets Adobe Reader's handling of XFA forms, indicating an attempt to achieve arbitrary code execution. While no specific URLs or scripts were directly extracted for analysis, the exploit itself is a critical indicator of malicious intent, likely to download and execute a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188
    PDF contains the CVE-2010-0188 exploit template: XFA JavaScript heap-spray setup, a generated TIFF image payload, and assignment of that TIFF data to an XFA image field rawValue to trigger Adobe Reader's LibTIFF parser.
  • XFA form contains risky executable script high CVE related PDF_XFA_SCRIPT
    PDF embeds an XFA form whose script block contains exploit, submission/launch, or shell-execution primitives. Ordinary LiveCycle print/update scripts are left as generic XFA/JS signals unless stronger behavior is present.
  • Embedded file low PDF_EMBEDDED
    PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • Embedded script payload in PDF stream low PDF_EMBEDDED_SCRIPT_PAYLOAD
    PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://ns.adobe.com/xdp/
    • http://www.xfa.org/schema/xfa-template/2.5/
    • http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0008.bin
20d7e18aac039193cab889de34348acf8b61f0ab5df23a383def9c6dcd134dcf		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 80140 bytes

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